Contamination control breather



FIG. 1 is a side and top perspective view of a contamination control breather showing in my new design;

FIG. 2 is a side elevation view thereof;

FIG. 3 is a side and bottom perspective view thereof;

FIG. 4 is a top plan view thereof; and,

FIG. 5 is a bottom plan view thereof.

The broken line showing of environmental structure in FIGS. 1-3 and 5 is for illustrative purposes only and forms no part of the claimed design. 

I claim the ornamental design for a contamination control breather, as shown and described. 